Maxwell House
Howard Efner
73 de KF5RGU
On Aug 8, 2021, at 16:26, `Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
Sistan is apparently a mixture of thiocyanate and a wetting agent. So, its
used in place of a wetting agent as the last step where it will not be rinsed
out by a subsequent bath. One complaint about it had to do with establishing
the concentration of the chemical remaining in the emulsion. If the stuff
works it has some advantages over toning.
I am drawing a blank on the brand of coffee widely advertised on radio in
the old days "Good to the last drop".
--
Richard Knoppow
dickburk@xxxxxxxxxxxxx
WB6KBL
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